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FM is 'frequency modulation' mode. AM is 'amplitude modulation' mode. SSB is 'single side band' mode, and there are two of these, upper side band (USB) and lower side band (LSB). These are all modes of receiving and transmitting. Not any one frequency. Theoretically, you can transmit or receive on any frequency in any of these modes. The radio itself can be put in these different modes and only receive and transmit with others that are using the same mode of operation. These modes all interpret the electrical signals differently from each other.

[QUOTE="Robb, post: 440196, member: 8446"] FM is 'frequency modulation' mode. AM is 'amplitude modulation' mode. SSB is 'single side band' mode, and there are two of these, upper side band (USB) and lower side band (LSB). These are all [B][I]modes[/I][/B] of receiving and transmitting. Not any one frequency. Theoretically, you can transmit or receive on any frequency in any of these modes. The radio itself can be put in these different modes and only receive and transmit with others that are using the same mode of operation. These modes all interpret the electrical signals differently from each other. [/QUOTE]

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